Cross-jointed metal bar



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WlTNEssss l INVENTOR ATTORNEYS Patented July 26, 1927.

UNITED STATES STEPHEN J. GARY, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALE To JOHN OF NEW YORK, N.. Y.

Pasteury OFFICE.

E. LEWIS,

CROSS-JOINTED METAL BAR.

Original application led March 18, 1925, Serial No. 16,450. Divided and this application filed August 28,

This invention relates to cross-jointed metal bars and particularly to a joint structure for metal window sashes, metal doors carrying panes of glass and other structures and has for an object to provide a construction which will present a maximum strength and a pleasing appearance.

Another object in view is to provide a lioint structure for met-al bars wherein none of the metal is removed.

A further object of the invention is to provide a crossfioint structure for bars for metal window sashes and the like wherein part of one bar cut` and pressed into a bracing and holding member interlocking with certain parts of the crossing bar.

This application is a division of my prior application, Serial No. 16,450. .tiled March 18. 1925 and patented March 22, 1927, No.` l 1,622,235.

In the accompanying drawings- Figure 1 is an elevation of a metallic Window sash showing other cross-joints embodying the invention.

Figure 2 is an enlarged elevation of one of the cross-joints `shovvn in Figure 1.

Figure 3 is a side view of the vertical bar shown in Figure 2 before the pressed out portion has been formed into its final shape.

Figure 4l is a sectional view through Figure 2, on line 4--1l. D

Figure 5 is a sectional view through Figure 4, on line 5 5.

Figure 6 is a perspective view of the interlockingr part of the bar shown in Figure 2 illustrating hoW the same is formed to receive the cross bar.

Figure 7 is a perspective view similar to Figure 6 but showing a slightly modified construction.

Referring to the accompanying drawings by numerals, 1 indicates a metal frame of any desired kind having cross bars 2 and 3 for assisting the frame 1 in holdingr the different panes of glass 4 in proper position. Heretofore, various methods have been provided for interlocking and connecting togcther at the point of crossing the bar 3 with the various bars 2. In the present invention, an improved structure has been provided shown in its complete working condition in Figures 2, 4 and 5.

From Figure 3 the bar 2 is shown after it Serial N0. 53,156. e

leaves the lirst die or punch. In this condition, a section 5 is pressed away from the web G for forminga socket 7. In addition, a section or portion is pressed out of t-he web 6 at 9 for forming the bracing members 10 and 11 which are integral as they are pressed from the same piece of material. After the parts have thus been formed, the bar 3 is forced into position as shown in dotted lines in Figure 3 and then. a die is used for compressing or forming the. apex or connecting portion 12 until the stiffening and gripping channel 1 3 is formed and is caused to press against the edge of the web of bar 3 and also against part of the sides thereof.

lhen the parts are in the position shown in Figures and 11, the bar 3 is held rigidly in place without any auxiliary holding means. It will be noted that in forming this cross-joint, no metal is actually removed to form the opening for recci ving the crossbar. B v this method of construction, the cross-joint has one hundred per cent of metal left in` place and acts to brace or stiifen the joint. In the drawing, the respective bars have been provided with a web havinga cross bar head on one edge which is provided with a reinforcing bead or web so as to be substantially triangular' in cross section. If preferred, this bead or extra Web could be eliminated so that the bar structure would be a simple T. In either event, the web 6 is cut from the base along the line 17 and is formed into the respective bracing members 10 and 11 so that the gripping member 13 may firmly grip the bar 3 at one edge. By cutting the parts along line 17 and forming the same up as described, none of the material of either bar 1s removed and, consequently, this presents a very strong and rigid crossjioint. It is evident that other forms of the invention might be made Without departing from the spirit of the invention, the essential principle remaining the same.

Heretofore, either one or both bars have been notched and parts interlocked either with or Without some form of solder or fastening means, In the present instance, none ot the metal is removed but, on the contrary, a portion of one of the bars is pushed to one side and formed into gripping and bracing Cil members fornot only bracing the bar on which the members are formed but the cross bar co-acting therewith.

In Figure 7, a slightly modified structure is disclosed wherein all of the parts are the same as in Figure 6 except that the gripping channel member 13 tapers to a rounded end 13 and the groove 13 gradually disappears as the `channel member 13 merges into the `Web 6i What I claim is l. Ina cross-joint for metal bars, a T- shaped bar formed with a portion of the base pressed out for receiving the base of a co-aeting T-shaped bar, and a pair of pressed out braces formed with a gripping 4channel member at'their meeting edges, the `material forming the braces being pressed out,` offthe web from the base and at an angle thereto to a point near'the edge of the `web whereby all of the material of the bar members extending from the base to aV point near the opposite edge of the bar.

` 3. In a cross-joint for bars7 ya substantially T-shaped bar formed with a base having a pressed out portion spaced'from the web of the bar, and a laterally7 projecting bracing and gripping structure pressed from the Web so that the gripping structure will grip the edge of a co-actin'g bar having its base fitted into said pressed'out portion, said laterally projecting bracing and gripping structure having diagonal braces extending from said gripping structure to the base of the bar. s

4. In a cross-joint for metal bars, a bar perforated between its edges to permit the insertion therethrough of a cross bar, the materiall of the web of said first bar adjacent the perforation being permanently dis` placed at substantially right angles to the side of said Web, said material extending 'from the base of the first bar to a point near the edge of the web of said first bar, the material displaced being formed to engage the outer edge o't' the web of the cross bar to etl'ect bracing of said cross bar by material displaced out of normal position.

5. In a cross-joint for metal bars a bar cut between its base and the inner edge of its web to permit insertion therethrough of a cross bar having a co-operating base and web, the web material of said first bar adjacent thel cut portion being displaced in a direction substantially at rightangles-to the side ot said web and formed to engage the web oi' the second bar at its outer'edge to effect bracing of said bars by web material displaced out of normal position, said material extending from the base of said first bar an appreciable distance toward the opposite edge of the web. i i

`sfrnrrmn J. GARY, 

